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<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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<body>

    <script>

        // var obj = {
        //     name : 'cc' ,
        //     age : 18 ,
        //     sex : '女' ,
        //     say : function () {  }
        // }


        // var name = obj.name ;


        // var year = date.getFullYear() ;

        // var res = arr.sort() ;


        // 先有对象，




    </script>
    
</body>
</html>